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Ethereum mining @ 1GH/s: 40 x GPUs = $5000+ per month

By: Anthony Garreffa | Editorials in Video Cards | Posted: Jun 21, 2017 12:56 am

Initial Setup, Testing, and Troubleshooting

 

As I said above, at first everything was... well, everywhere. It was set up in the most basic form, as a test - to see what graphics cards would fit where, and how much power we'd be using across multiple systems. After an adjustment onto some better shelving for breathing room, the cards began running cooler - just in time for a new target.

 

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Final Form Before the Big Move

 

This was the final form before the big move because I shifted off a bunch of the graphics cards using heaps of power (looking at you, Radeon R9 295X2 - two of those were killing me). I changed out the two R9 295X2's (four GPUs in total) with 15 x GTX 1060s for the same power draw... around 1400W total.

 

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The shift to these stands really did help, but it was the move into the garage with additional industrial fans that changed everything. We moved to even more systems, and used every single one of the 30 x PCIe risers that I purchased. Meaning we were finally at 40 graphics cards... and then, the big move - where all of the problems started, and it caused major outages of my entire system.

 

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We tore down the power system, networking setup, and moved all of the cards onto specific PSUs for specific loads - down to the very last PCIe power connector.

 

Then... the move began.

 

 

Some Power & Networking Tweaks

 

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This is the NTD box to my NBN connection (National Broadband Network here in Australia, fiber to the home @ 100/40Mbps). Lots of network cabling to all of my miners.

 

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See! Also, some electricity reaching over, instead of under and seeing me trip over it.

 

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Cooling is one of THE most important parts of mining, especially at this level. Beyond this, you're going to need many more (I have two big fans). Alternatively, strong AC units. We are lucky at the moment as it is winter in Australia.

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